Respirator



FIG. 1 is a top, front, right side perspective view of a respirator showing my new design;

FIG. 2 is a top plan view of the respirator shown in FIG. 1;

FIG. 3 is a bottom plan view of the respirator shown in FIG. 1;

FIG. 4 is a front elevational view of the respirator shown in FIG. 1;

FIG. 5 is a rear elevational view of the respirator shown in FIG. 1;

FIG. 6 is a left elevational side view of the respirator shown in FIG. 1; and,

FIG. 7 is a right elevational side view of the respirator shown in FIG. 1.

The broken lines shown in the drawings represent portions of the respirator that form no part of the claimed design. 

CLAIM The ornamental design for a respirator, as shown and described. 